2015-2017 Ford Mustang Cat-back Exhaust System Flowmaster American Thunder 817730
2015-2017 Ford Mustang Cat-back Exhaust System Flowmaster American Thunder 817730
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Overview:
The Flowmaster® American Thunder® Cat-back exhaust system is designed for 2015-2017 Ford Mustang GT 5.0L coupes and is perfect for the person looking for an aggressive sound level outside of the car, while maintaining a moderate sound level inside the car. This bolt-on emissions-legal system features our exclusive dual 3.00-inch mandrel-bent Scavenger Series® X-pipe assembly for maximum power and a deep unique tone. The Scavenger X-pipe exits into a pair of specially designed 60 Series™ performance mufflers with 3.00-inch mandrel-bent tailpipes and are finished off with large 4.00-inch polished stainless steel tips. Designed for an easy fit, this system uses the factory hanger locations and includes all necessary parts and hardware for an installation you can do at home. Note: Does not fit Convertibles.
Features:
Specs:
Applications:
- 2015-2017 Ford Mustang 302 CID
Emissions:
- This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Policies and FAQs
Return Policy
Fault reasons include but are not limited to:
- Buyer was shipped the wrong product
- Buyer was shipped a damaged product
- The product page had incorrect fitment and the part does not fit the Buyer's vehicle
Opened boxes, plastic bags, and other packaging are not considered damage (excluding single use items such as, but not limited to, liquids, software, and other components that cannot be reused/resealed).
FAQs
|Q. What is an Intermediate Brake Line?
|A. This is the line that runs from the front of the vehicle to the rear. On most vehicles it connects to a junction then you will have rear axle lines. On a few cars the intermediate lines will connect to the rear wheels. It is recommended to change the axle lines if you are replacing the intermediate lines.
|Q. What is included in a pre bent brake line kit?
|A. Our kits include all of the solid metal lines for that section of the vehicle
|Q. I need to return something - what's your return policy?
|A. We are happy to help! Please help us to help you by going to our return form and filling out the form as best as you can in order to request a return.
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Modern Day stands by our parts and is happy to accept returns within 30 days of purchase. Parts must be in new condition.
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If a part arrives damaged, or is defective, Please report it to us immediately. So we can handle it for your promptly.